Carding machine



June 24 v1924,. 1,499,111

G.- c. LAURENCY ET AL.

CARDING MACHINE Filed May 26. 1921 Patented .lune Z4, 1924. Y T

narran stares GUILLAUME C. LAURENCY AND, MARCEL VIS-IER, OF LONDON, ENGLAND.

eARnINs Macririm,

.Application filed May 26, 153521.` Serial No. 472,850.

(GRANTED UNnna ma raevrsieNs er'rniiaer er Nasen" 1921, n STAT. L., 13134' To @ZZ 107mm it may] concern.'

Be it known that we,v GUILLAUME CLEM- ENT LAURENCY, a subject of the King of Belgium, and MARCEL Vieira, a French citi- 5 Zen, both residents of London, in the county of London, England, have invented certain improvements in Carding Machines (for which we have applied 'tor a patent in Great Britain, on November 21, 1919, Patent Num i0 ber 29011), of which ythe following is a speciication. y J

This invention vrelates to the main carding cylinders'. and doiting Cylinders of carding machines; and it consists in the novel construction and combination of the parts hereinafter fully described Vand claimed.

In the drawings, Figure I is a side view of portions, oit a main carding cylinder, and a dotler constructed according to this invention, portions of the doti'er being shown Ybroken away. Fig. H is an'end view of the doi'lier, partially in section. i

The direction of rotation of the main card cylinder A of the* machine and that of the jim aroved dottino e 7linder B are indicated by the arrows l and Q, and 2 designate Athe needles or card teet'hotthe doiiing cylinder, having their points directed forwardly or in the direction of rotation.

torse, which are arranged inthe iorin of a crown at each end of the dotling cylinder B, participate in the movement ot the latter about its axis, but describe an eccentric path with regard to saidl'a'xis. This eccentricity is determined by a fixed cam 5, on which a disc 6 can turn freely, by means of bars 8, which carry sectors i tog'which the metallic wires 3 are fixed and which slide at an angle of 25 degrees into notches formed for that purpose in the cheeks of the cylinder. he bars are carried by the disk 6 and follow the radius of the edge Toit said disc, the axis oi which is displaced by the cam 5. Following the movement-'of said edge 7 the bars 8 and consequently the sectors et with the metallic wires, are moved away from or approached to the axis oi the cylinder, according as the revolutions of the latter remove them from c or bring them nearer to the main card cylinder A, and the wires 3 are thus hidden at the foot of the needles of the dotiing cylinder while it is being leaded with iibres, (see lefthand part of F ig. l) and nieve outwards from said needles on being removed from the main card cylinder. The fibres are thus raised or moved bythe wires above or beyond the needles 2 andare thus completely liberated from the latter, as shown at'the -7 right-hand part of Fig.` l. .K

A ring 9 servesas a guide'for the lower ende of the sliding bars 8, while rkeeping Vthemrv all the time inthe notches. The cam 5 can bev iixed in different positions vand may be advanced by about one quarter'of a revolution when it is desired to grind the cylinder fittings 2a softhatthe metallic wires 3 'may be ati the bottom of the needles when tiey areaeted upon by the grinding means. A. knife il located between the cylinders A and B can be regulated with regard to the carding point, lto vary the intensity of the cleaning and ycarding of the fibres by the needles ofthe maincard cylinder.

' vl't'i's well known that it is not possibleto increase' the peripheral :speed ofthe doffer with ,regard to that of the lmain card-cylinder, in order to increase'theproduction of "mittingjthe fibres betweenthese two parts or the machine, and in consequence din'iishy v 'ing the production ofitliefmachine. This de- Metallic wires 3 stretched betweenr sec-v` yonly in the production but also in the qual- 'ity of the work produced, does not exist with lthe present invention. The direction of rotation of the doiiingfcylinder, indicated in Fig. l, dispenses withthe necessity for havingv a Vfixed speed otsaid doiHng/cylinder with regard rto that ofitheinain vcard cylinder, and owing 4tothis novel methodfot working,i all increases of speed of the dofng cylinde 1 increase the capacity 'for transmitting fibres and consequently increase the production of the machine.

If the dotter of the carding machine revolves with a peripheral speed equal to the peripheral speed oi the main card cylinder, its needles will not take theiibres when they pass near said cylinder, and no iibres will be delivered from the machine, but if its revolutions are effected in the oppositedirection'as described above, all the needles will become loaded with libres. The speed of the doiifer must consquently be reduced as much as possible, but this lower speed musty be sufficient for the discharge of the fibres 'present-day carding Ainachines`,'aill increase which it has collected. That is the fixed condition which is imposed for the dof'fers of all carding machines o-f the present day. In these conditions, if the speed of the doffer is reduced to revolutions for the necessary time foi producing say, 5 lbs. of cotton for example, the output of our improved carding doffer, with the same reduction to 50 revolutions and for the same time of working will be of 5 lbs.-l5 lbs.:10 lbs.: and in doubling the speed this production will be 20 lbs., whereas in doubling the speed of the doifer of the present day carding machines, the kproduction will be something like Zero, seeing that the doffer has the peripheral speed of the main cylinder.

The direction of rotation of the dolfing cylinder B as described, allows the needles of the main card cylinder A to clean, separate and parallelise the fibres which it attaches to the needles ofthe dofer cylinder, and as these fibres areliberated from the latter wit-hout disturbing the parallelism which has been given to them in the carding machine, the devices hereinafter described, the object of which is to preserve and increase the parallelism in the subsequent operations will finally produce laps or slivers, with parallelised fibres.

Such action of the dofting cylinder B is distinct from a known device in carding machines in which there is used a transferring cylinder having the points of its teeth in the direction of its rotation but which only reverses the fibres without carding or combin@ them.

or the preparation of fibres for the spinning of waste, carded wool, etc., the fibres usually pass through three carding machines, the first two rolling the sheet or web of fibres into a lap which the last forms again into a web. The latter is aftern wards divided into narrow ribbons which form the slubbings for the drawing frames or spinning mules.

A device for forming laps of fibers is arranged on the opposite side of the doffer B from the carding cylinder A. A portion of this device is shown in Fig. I, and it has an endless apron which passes over rollers l2 and 14.

Whatwe claim is:

l. The combination, with a carding cylinder, of a doffer adapted to be revolved in the reverse direction from the carding cylinder, said dolfer comprising a cylinder provided with card teeth at its periphery and having guide notches in its ends, stationary cams arranged at the ends of the dolfer cylinder, disks revoluble with the dolfer cylinder on the cams and moving towards and away from the carding cylinder as the doffer is revolved, bars connected to the disks at one end and slidable in the said notches, and wires supported between the free end portions of the said bars and eX- tending longitudinally of the doifer cylinder and movable into and out of engagement with its card teeth.

2. The combination, with a carding cylinder, of a doffer adapted to be revolved in the reverse direction from the carding cylinder, said doffer comprising a cylinder provided with card teeth at its periphery and having guide notches in its ends, stationary cams arranged at the ends of the dofer cylinder, disks revoluble with the doffer cylinder on the cams and moving towards and away from the carding cylinder as the doifer is revolved, bars connected to the disks at one end and slidable in the said notches and arranged with their free outer ends in advance of their inner ends in the direction of the revolution of the doffer cylinder, sectors secured to the free ends of said bars, and wires extending longitudinally of the doifer cylinder between the said sectors and movable into and out of engagement with its card teeth.

In testimony whereof we have hereunto set our hands in the presence of two witnesses.

e. o. LAURENCY. M. vicina.

Witnesses:

J. ARosA EssoN, FRED R. BUsHBY. 

